Search Results - (Author, Cooperation:J. Hakala)
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1Staff View
Publication Date: 2018-05-10Publisher: Institute of Physics Publishing (IOP)Electronic ISSN: 1748-0221Topics: PhysicsPublished by: -
2Staff View
Publication Date: 2018-01-06Publisher: Institute of Physics Publishing (IOP)Electronic ISSN: 1748-0221Topics: PhysicsPublished by: -
3C. D. Cappa ; T. B. Onasch ; P. Massoli ; D. R. Worsnop ; T. S. Bates ; E. S. Cross ; P. Davidovits ; J. Hakala ; K. L. Hayden ; B. T. Jobson ; K. R. Kolesar ; D. A. Lack ; B. M. Lerner ; S. M. Li ; D. Mellon ; I. Nuaaman ; J. S. Olfert ; T. Petaja ; P. K. Quinn ; C. Song ; R. Subramanian ; E. J. Williams ; R. A. Zaveri
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-09-04Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Atmosphere/*chemistry ; Carbon/*chemistry ; *Global Warming ; *Light ; *Photochemical Processes ; Soot/*chemistryPublished by: -
4M. Kulmala ; J. Kontkanen ; H. Junninen ; K. Lehtipalo ; H. E. Manninen ; T. Nieminen ; T. Petaja ; M. Sipila ; S. Schobesberger ; P. Rantala ; A. Franchin ; T. Jokinen ; E. Jarvinen ; M. Aijala ; J. Kangasluoma ; J. Hakala ; P. P. Aalto ; P. Paasonen ; J. Mikkila ; J. Vanhanen ; J. Aalto ; H. Hakola ; U. Makkonen ; T. Ruuskanen ; R. L. Mauldin, 3rd ; J. Duplissy ; H. Vehkamaki ; J. Back ; A. Kortelainen ; I. Riipinen ; T. Kurten ; M. V. Johnston ; J. N. Smith ; M. Ehn ; T. F. Mentel ; K. E. Lehtinen ; A. Laaksonen ; V. M. Kerminen ; D. R. Worsnop
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-02-23Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
5C. D. Cappa ; T. B. Onasch ; P. Massoli ; D. R. Worsnop ; T. S. Bates ; E. S. Cross ; P. Davidovits ; J. Hakala ; K. L. Hayden ; B. T. Jobson ; K. R. Kolesar ; D. A. Lack ; B. M. Lerner ; S. M. Li ; D. Mellon ; I. Nuaaman ; J. S. Olfert ; T. Petaja ; P. K. Quinn ; C. Song ; R. Subramanian ; E. J. Williams ; R. A. Zaveri
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-09-01Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Adsorption ; Atmosphere/*chemistry ; California ; Carbon/analysis/*chemistry ; *Global Warming ; *Light ; Particle Size ; *Photochemical Processes ; Soot/analysis/*chemistryPublished by: -
6Staff View
Publication Date: 2018-10-03Publisher: Institute of Physics Publishing (IOP)Electronic ISSN: 1748-0221Topics: PhysicsPublished by: -
7J. Kirkby ; J. Duplissy ; K. Sengupta ; C. Frege ; H. Gordon ; C. Williamson ; M. Heinritzi ; M. Simon ; C. Yan ; J. Almeida ; J. Trostl ; T. Nieminen ; I. K. Ortega ; R. Wagner ; A. Adamov ; A. Amorim ; A. K. Bernhammer ; F. Bianchi ; M. Breitenlechner ; S. Brilke ; X. Chen ; J. Craven ; A. Dias ; S. Ehrhart ; R. C. Flagan ; A. Franchin ; C. Fuchs ; R. Guida ; J. Hakala ; C. R. Hoyle ; T. Jokinen ; H. Junninen ; J. Kangasluoma ; J. Kim ; M. Krapf ; A. Kurten ; A. Laaksonen ; K. Lehtipalo ; V. Makhmutov ; S. Mathot ; U. Molteni ; A. Onnela ; O. Perakyla ; F. Piel ; T. Petaja ; A. P. Praplan ; K. Pringle ; A. Rap ; N. A. Richards ; I. Riipinen ; M. P. Rissanen ; L. Rondo ; N. Sarnela ; S. Schobesberger ; C. E. Scott ; J. H. Seinfeld ; M. Sipila ; G. Steiner ; Y. Stozhkov ; F. Stratmann ; A. Tome ; A. Virtanen ; A. L. Vogel ; A. C. Wagner ; P. E. Wagner ; E. Weingartner ; D. Wimmer ; P. M. Winkler ; P. Ye ; X. Zhang ; A. Hansel ; J. Dommen ; N. M. Donahue ; D. R. Worsnop ; U. Baltensperger ; M. Kulmala ; K. S. Carslaw ; J. Curtius
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-05-27Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
8J. Almeida ; S. Schobesberger ; A. Kurten ; I. K. Ortega ; O. Kupiainen-Maatta ; A. P. Praplan ; A. Adamov ; A. Amorim ; F. Bianchi ; M. Breitenlechner ; A. David ; J. Dommen ; N. M. Donahue ; A. Downard ; E. Dunne ; J. Duplissy ; S. Ehrhart ; R. C. Flagan ; A. Franchin ; R. Guida ; J. Hakala ; A. Hansel ; M. Heinritzi ; H. Henschel ; T. Jokinen ; H. Junninen ; M. Kajos ; J. Kangasluoma ; H. Keskinen ; A. Kupc ; T. Kurten ; A. N. Kvashin ; A. Laaksonen ; K. Lehtipalo ; M. Leiminger ; J. Leppa ; V. Loukonen ; V. Makhmutov ; S. Mathot ; M. J. McGrath ; T. Nieminen ; T. Olenius ; A. Onnela ; T. Petaja ; F. Riccobono ; I. Riipinen ; M. Rissanen ; L. Rondo ; T. Ruuskanen ; F. D. Santos ; N. Sarnela ; S. Schallhart ; R. Schnitzhofer ; J. H. Seinfeld ; M. Simon ; M. Sipila ; Y. Stozhkov ; F. Stratmann ; A. Tome ; J. Trostl ; G. Tsagkogeorgas ; P. Vaattovaara ; Y. Viisanen ; A. Virtanen ; A. Vrtala ; P. E. Wagner ; E. Weingartner ; H. Wex ; C. Williamson ; D. Wimmer ; P. Ye ; T. Yli-Juuti ; K. S. Carslaw ; M. Kulmala ; J. Curtius ; U. Baltensperger ; D. R. Worsnop ; H. Vehkamaki ; J. Kirkby
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-10-08Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Amines/*chemistry ; Atmosphere/*chemistry ; Cosmic Radiation ; Dimethylamines/chemistry ; Greenhouse Effect ; Human Activities ; Models, Chemical ; Particulate Matter/*chemistry ; Quantum Theory ; Sulfur Dioxide/chemistry ; Sulfuric Acids/*chemistryPublished by: -
9Staff View
Publication Date: 2018-12-13Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
10Staff View
ISSN: 1617-4623Keywords: Key wordsStreptomyces nogalater ; Anthracycline ; Nogalamycin ; 3 ; 5-Epimerase ; 4-EpimeraseSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract The sno gene cluster in Streptomyces nogalater ATCC 27451 contains the nogalamycin biosynthesis genes. A set of plasmid constructions carrying fragments of the sno cluster that lie downstream of snoD were used to complement the S. galilaeus mutant H039, which is blocked in rhodosamine and 2-deoxyfucose biosynthesis in the aclacinomycin pathway. Sequence analysis of this cluster revealed three contiguous open reading frames (ORFs) that were designated snoF, snoG, and snoH. Only those plasmid constructs that expressed SnoG were able to complement H039. SnoG shows similarity to GalE, a UDP-glucose-4-epimerase catalyzing the epimerization of UDP-glucose to UDP-galactose. The putative SnoF protein is similar to 3,5-epimerases involved in rhamnose biosynthesis. The deduced product of snoH is a 489-amino acid polypeptide. It is similar to the product of dau ORF3 found in the daunomycin cluster. However its function is still unclear. Based on the complementation experiments and sequence analysis, this part of the sno cluster is suggested to be involved in the biosynthesis of the sugar portion of nogalamycin. Interestingly, SnoA, a transcriptional activator for the sno minimal polyketide synthase, is also needed to express this cluster.Type of Medium: Electronic ResourceURL: -
11Staff View
ISSN: 1617-4623Keywords: Streptomyces Anthracycline Aclacinomycin Deoxyhexose pathway Hybrid antibioticsSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract. We have cloned and characterized a gene cluster for anthracycline biosynthesis from Streptomyces galilaeus. This cluster, 15-kb long, includes eight genes involved in the deoxyhexose biosynthesis pathway, a gene for a glycosyltransferase and one for an activator, as well as two genes involved in aglycone biosynthesis. Gene disruption targeted to the activator gene blocked production of aclacinomycins in S. galilaeus. Plasmid pSgs4, containing genes for a glycosyltransferase (aknS), an aminomethylase (aknX), a glucose-1-phosphate thymidylyltransferase (aknY) and two genes for unidentified glycosylation functions (akn T and aknV), restored the production of aclacinomycins in the S. galilaeus mutants H063, which accumulates aklavinone, and H054, which produces aklavinone with rhodinose and deoxyfucose residues. Furthermore, pSgs4 directed the production of L-rhamnosyl-ε-rhodomycinone and L-daunosaminyl-ε-rhodomycinone in S. peucetius strains that produce ε-rhodomycinone endogenously. Subcloning of the gene cluster was carried out in order to further define the genes that are responsible for complementation and hybrid anthracycline generation.Type of Medium: Electronic ResourceURL: -
12Staff View
ISSN: 1435-1528Keywords: Extrusion coating ; ultrasonic analysisSource: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
13Terney, S. ; Keating, J. ; Zielinski, J. ; Hakala, J. ; Sheffer, H.
New York : Wiley-Blackwell
Published 1970Staff ViewISSN: 0449-296XKeywords: Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: A novel preparation of polyamide-imides from diphenylmethane diisocyanate and trimellitic anhydride in N-methylpyrrolidone is described. Partial substitution of trimellitic anhydride with either maleopimaric acid, terephthalic acid, or by various di-anhydrides permitted a correlation of structure with solution stability and thermal properties. Heat resistance improved with increasing imide content of the polyamide-imide. Almost all solutions advanced in viscosity on storage at room temperature. The least stable solutions were those that deviated the most from 50-50 amide-imide. However, the viscosity changes depended somewhat on the type of modifying ingredient. For example, polyamide-imides modified by substitution of 10% PMDA (pyromellitic anhydride) or BPDA (benzophenone tetracarboxylic acid dianhydride) were less stable than those modified with 10% (cyclopentanetetracarboxylic acid dianhydride) CPDA or THFDA (tetrahydrofuran-2,3,4,5-tetracarboxylic acid dianhydride). The use of excess reagent and of monofunctional chain stopper was investigated as a means of controlling solution stability.Additional Material: 5 Ill.Type of Medium: Electronic ResourceURL: